May 14, 2010 Tokyo Gas and Osaka Gas Begin Smart Energy Network Demonstration Project Tokyo Gas Co., Ltd. Osaka Gas Co., Ltd. Tokyo Gas Co., Ltd. (headquarters: Minato-ku, Tokyo; President: Tsuyoshi Okamoto; hereafter Tokyo Gas ) and Osaka Gas Co., Ltd. (headquarters: Osaka City, Osaka prefecture: President Hiroshi Ozaki; hereafter Osaka Gas ) will be jointly implementing a Smart Energy Network demonstration project from this month, May 2010. The Smart Energy Network will introduce large quantities of renewable energies and unused energies in dispersed energy systems, and use information and telecommunications technologies for the optimal control of energy supply and demand. The two companies will conduct detailed design works and initiate the Smart Energy Network demonstration project from May 2010 to collect and analyze data and advance improvements to the system. Outline of the Demonstration Project This project will implement demonstration works on two systems: System A, which aims at optimization within a given community through the interchange of electric and heat within a specific area, and System B, which works at optimization throughout a wide area by linking multiple geographically scattered System A communities with a natural gas co system for full use of heat at each site and interchange of electric throughout the wide area. The project is expected to reduce CO 2 emissions by over 30%. *1 The project also promotes the introduction of photovoltaic by supplementing photovoltaic whose output fluctuates depending on the weather with co, which reduces the required capacity of photovoltaic storage facilities. *1. Ratio of the CO 2 emissions volumes from the demonstration project facilities to those from the facilities in 1990 with no co (with system electric CO 2 unit emissions calculated at 0.69kg-CO 2 /kwh).
Figure 1. Outline of the Smart Energy Network Demonstration Project <System <システム A> A> Specified area 特定エリア Heat [High-density 需要密集地 demand 等 area, etc.] interchange, 熱融通等 etc. Photovoltaic 太陽光 Solar heat collection 太陽熱発電装置 集熱装置 facilities facilities Heat 熱導管 conduit Photovoltaic 太陽光 Heat 熱融通 interchange 発電装置 Control 制御管理 management facilities system システム 太陽熱集熱装置 Photovoltaic 太陽光 発電装置 facilities Electric 電力 ネットワーク network [District heating and cooling <System 地域冷暖房施設等 <システム B> facilities, etc.] B> Wide area 大型コージェネ 広域エリア Large-scale co Electric 電力融通等 interchange, etc. Heat 熱導管 conduit Heat 熱利用 use スマートエネルギーネットワーク Smart Energy Network control 制御管理システム management system Heat 熱利用 use 太陽光発電装置 Photovoltaic facilities Information 情報通信 and telecommunications ネットワーク network Heat 熱利用 use 業務用ビル Commercial building [Large-scale 大規模再開発エリア redevelopment area] : : Co コージェネ Tokyo Gas will be in charge of System A. In this system, electric and heat supplied from high-efficiency co, solar heat collection and photovoltaic facilities installed at the Tokyo Gas Senju Techno Station (Arakawa-ku, Tokyo) will be interchanged among multiple buildings within the compound. With project support from Arakawa-ku, Tokyo Gas will also install a conduit which crosses a ward road for the interchange of heat with the Arakawa Ward Special Nursing Care Home for the Elderly. Osaka Gas will be in charge of System B. Osaka Gas will construct a remote supervisory control system to control optimization, assuming electricity interchange, linking an existing district heating and cooling facility the Iwasaki Energy Center (Osaka City, Osaka Prefecture) with photovoltaic facilities installed at about four locations (Kakogawa City, Hyogo Prefecture; Konan City, Shiga Prefecture; etc.) and about five customer co facilities. This project was selected today as a Ministry of Economy, Trade and Industry (METI) Dispersed Energy Compound Optimization Demonstration Project. Future Development Tokyo Gas and Osaka Gas both participate in the Smart Community Alliance established by METI in April 2010, and are actively working to promote smart communities. *2 Tokyo Gas and Osaka Gas also both participate in the Next-Generation Energy and Social Systems Demonstration Areas *3 that are being advanced by METI. The present Smart Energy Network demonstration project should establish universal models that can be introduced to diverse buildings, be broadly applied in other demonstration projects and in
actual supply, and advance the realization of a low-carbon society. *2. Smart communities are next- energy and social systems within specific areas which combine the effective utilization of electric with the district-wide use of energy including heat and unused energy, local transportation systems, and reforms to residents lifestyles. *3. Demonstration projects to realize next- energy and social systems, including a Japanese version smart grid, being advanced by METI. Tokyo Gas is participating in the Yokohama City project, and Osaka Gas is participating in Kyoto Prefecture (Keihanna Science City) project. <Supplement> Regarding Smart Energy Networks The demand for renewable energy supply facilities and for co which is a dispersed electric system with superior energy conservation and CO 2 reduction continues growing as we move toward energy security and realization of a low-carbon society. Further advancing the effective use of energy overall will require the effective use not only of electric, but also considerations of heat, which accounts for over 50% of final energy consumption, the coordination of large-scale networks with dispersed systems, and the best mix of renewable energies and conventional energies. Smart Energy Networks are next- energy and social systems which work at optimal energy use by combining electric with heat, renewable energies, garbage incineration plant waste heat and other unused energies, and arranging interchange among multiple end users.
<Reference> Outline of System A System A constructs a heat interchange network which integrates nearby heat demand in an area with high-density heat demand, combines this with co, solar heat collection and photovoltaic facilities, and regulates heat and electric interchange. This project will verify (1) the effect of electric and heat interchange among multiple structures including commercial buildings and homes, (2) the centralized control and prioritized use of heat resource facilities combining collected solar heat which fluctuates with the weather with co waste heat, and (3) the control of co to supplement photovoltaic, whose output also fluctuates with weather. The project is expected to realize CO 2 emissions reductions of approximately 30%. Figure 2. Outline of System A Demonstration Project Arakawa Ward 荒川区道 road Arakawa Ward Special 荒川区 Nursing Care Home for N 特別養護老人ホーム the Elderly. 1 00m Hot water Heat Control 給湯 supply 熱源シ source 制御管理 management システム system ステム system システム system Separate building 別棟 Photovoltaic 太陽光 facilities 発電装置 Commercial 業務用建物 building 2 Co コージェネ 太陽熱 Solar heat 集熱装置 collection facilities Co コージェネ Commercial 業務用建物 building 1 1 Solar heat collection 太陽熱集熱装置 facilities Tokyo Gas Senju office モデルハウス Model house 東京ガス千住事業所 明治通り Meiji Dori Avenue Solar heat and co waste 太陽熱 heat コージェネ廃熱 Hot 温水 water ( 暖房 (heating) ) Hot water 温水 ( 給湯 ) (hot-water supply) 電力冷水東京ガス構内 Electric Cold water Within the Tokyo Gas compound System A Main Equipment Specifications Item Specifications Solar heat collection facilities Approx. 300m 2 (separate installations at two locations)
Photovoltaic facilities Co Approx. 90kW One 370 kw unit plus one 700kW unit Outline of System B System B assumes the interchange of electric linking a large-capacity co system installed at a major consumer with geographically scattered photovoltaic facilities and other co facilities. The demonstration facilities assume the Iwasaki Energy Center as a system installed at a major consumer, approximately five other existing customer co systems whose output is viewed as interchange electric produced by large-scale co, and about four photovoltaic facilities on company property. This project will verify (1) the effect of electric interchange throughout a wide area considering the optimal use of heat at each site, through centralized control over multiple, geographically separated supply sources and demand end users, (2) remote control of energy supply facilities using regular telecommunications lines, (3) countermeasures to output fluctuations and countermeasures to surplus electric from the large-scale introduction of photovoltaic facilities through cooperative control of co in accordance with the output of the photovoltaic facilities. This project is expected to realize CO 2 emissions reductions of approximately 30%. (Kakogawa City, Hyogo ( 兵庫県加古川市 Prefecture) ) Figure 3. Outline of System B Demonstration Project Regulated [Iwasaki 岩崎エネルギーセンター Energy Center] 調整電源 Installation of photovoltaic supply コージェネ35kW 5 台 4 箇所程度の Co X 5 units facilities 太陽熱パネル太陽光発電装置設置 Solar heat panels at about four locations 45kW Heat 熱利用 use [factory 工場需要家もしくは社内遊休地 consumers or idle company land] 45kW 2 X 箇所 2 locations Electric電力ネットワーク network 45kW Information and 情報通信 [Osaka 大阪ガス御堂筋東ビル Gas Midosuji East Bldg.] telecommunications ネットワーク スマート エネルギー ネットワーク Smart Energy Network network Participation by 5 件程度の control 制御管理システム management system ( 滋賀県湖南市 (Konan City, ) about five 需要家が参加 consumers Shiga Prefecture) Heat 熱利用 use Heat 熱利用 use Heat 熱利用 use : : Co コージェネ
Figure 4. System B Demonstration Project Facilities Locations Image (Kakogawa ( 加古川市 City) ) Iwasaki 岩崎エネルギー Energy Center センター (Konan( 湖南市 City) ) Commercial 業務用ビルbuilding 大阪ガス御堂筋東 Osaka Gas Midosuji ビル East ( システム Bldg. (system) ) Locations indicated 場所については現時点での計画 are per the present plan. System B Main Equipment Specifications Item Specifications Solar heat collection facilities 100m 2 Photovoltaic facilities 180kW (separate installations at about four locations) Customer co 800kW scale X about 5 locations Iwasaki Energy Center co 175kW (35kW X 5 units)